Fitness Room: An idea I did not come up with at 2 AM

[btek]

Jebediah Heffenfeffer's shoelace gets caught under the treadmill's rotating belt!
Jebediah Heffenfeffer screeches piteously as his body is swiftly sucked under and ground into paste!

Something like this. Outrageous, disgusting and mildly comical in a horrifying sort of way.